Estimate Split-Half Reliabilities R package splithalfr version 3.0.0 Estimates split-half reliabilities for scoring algorithms of cognitive tasks and questionnaires. The 'splithalfr' supports researcher-provided scoring algorithms, with six vignettes illustrating how on included datasets. The package provides four splitting methods (first-second, odd-even, permutated, Monte Carlo), the option to stratify splits by task design, a number of reliability coefficients, the option to sub-sample data, and bootstrapped confidence intervals. Software Depends: R (>= 3.6.0) Imports: dplyr (>= 1.0.7), tibble (>= 2.1.1), psych (>= 1.8.12), boot (>= 1.3.31), rlang (>= 0.4.0) Suggests: knitr (>= 1.20), rmarkdown (>= 1.10), testthat (>= 2.1.0), MASS (>= 7.3.51) Thomas Pronk <pronkthomas@gmail.com> Comprehensive R Archive Network (CRAN) Thomas Pronk [aut, cre] GPL-3 2025-04-29 application/tgz https://CRAN.R-project.org/package=splithalfr doi:10.32614/CRAN.package.splithalfr